#!/bin/bash
# Post-commit hook: Send dev-alerts for feature specs and significant changes

# Get commit info
COMMIT_HASH=$(git rev-parse --short HEAD)
COMMIT_MSG=$(git log -1 --pretty=%B)
BRANCH=$(git rev-parse --abbrev-ref HEAD)
AUTHOR=$(git log -1 --pretty=%an)

# Determine project from submodule path
if git rev-parse --show-toplevel | grep -q "guru-connect"; then
    PROJECT="guruconnect"
    PROJECT_NAME="GuruConnect"
elif git rev-parse --show-toplevel | grep -q "guru-rmm"; then
    PROJECT="gururmm"
    PROJECT_NAME="GuruRMM"
else
    PROJECT="claudetools"
    PROJECT_NAME="ClaudeTools"
fi

# Check if this is a spec commit (new SPEC-NNN file or updated roadmap)
SPEC_FILES=$(git diff-tree --no-commit-id --name-only -r HEAD | grep -E 'docs/specs/SPEC-[0-9]+-.*\.md$')
ROADMAP_UPDATED=$(git diff-tree --no-commit-id --name-only -r HEAD | grep -E 'FEATURE_ROADMAP\.md$')

if [[ -n "$SPEC_FILES" ]]; then
    # Extract SPEC number and name from first spec file
    SPEC_FILE=$(echo "$SPEC_FILES" | head -1)
    SPEC_NUM=$(echo "$SPEC_FILE" | grep -oE 'SPEC-[0-9]+')
    SPEC_NAME=$(echo "$SPEC_FILE" | sed -E 's/.*SPEC-[0-9]+-(.*)\.md$/\1/' | tr '-' ' ' | sed 's/.*/\u&/')

    # Read spec file to extract key info
    SPEC_PATH=$(git rev-parse --show-toplevel)/"$SPEC_FILE"
    PRIORITY=$(grep -m1 "^\*\*Priority:\*\*" "$SPEC_PATH" | sed 's/.*Priority:\*\* //' | tr -d '\n')
    EFFORT=$(grep -m1 "^\*\*Estimated Effort:\*\*" "$SPEC_PATH" | sed 's/.*Estimated Effort:\*\* //' | tr -d '\n')
    OVERVIEW=$(sed -n '/^## Overview/,/^##/p' "$SPEC_PATH" | grep -v "^##" | head -5 | tr '\n' ' ')

    # Send dev-alerts message
    SESSION_ID=$(hostname)/claude-main

    # Build JSON payload with proper escaping
    JSON_PAYLOAD=$(python3 -c "import json; print(json.dumps({
        'from_session': '$SESSION_ID',
        'to_session': 'dev-alerts',
        'project_key': '$PROJECT',
        'subject': '$PROJECT_NAME Feature Spec: $SPEC_NUM $SPEC_NAME',
        'body': '''New $PROJECT_NAME feature specification created.

$SPEC_NUM: $SPEC_NAME
Priority: $PRIORITY | Effort: $EFFORT

OVERVIEW:
$OVERVIEW

Commit: $COMMIT_HASH on $BRANCH
Author: $AUTHOR

🤖 Auto-generated via post-commit hook'''
    }))")

    curl -s -X POST http://172.16.3.30:8001/api/coord/messages \
      -H "Content-Type: application/json" \
      -d "$JSON_PAYLOAD" > /dev/null 2>&1
fi

# Detect build/push events (commit message contains 'spec:', 'feat:', 'fix:', etc.)
if echo "$COMMIT_MSG" | grep -qE '^(spec|feat|fix|chore|docs|build):'; then
    COMMIT_TYPE=$(echo "$COMMIT_MSG" | grep -oE '^[a-z]+:' | tr -d ':')

    # Only send build alerts for significant commits on main branch
    if [[ "$BRANCH" == "main" ]] && [[ "$COMMIT_TYPE" =~ ^(spec|feat|fix|build)$ ]]; then
        FILES_CHANGED=$(git diff-tree --no-commit-id --name-only -r HEAD | wc -l | tr -d ' ')

        SESSION_ID=$(hostname)/claude-main

        # Build JSON payload with proper escaping
        JSON_PAYLOAD=$(python3 -c "import json; print(json.dumps({
            'from_session': '$SESSION_ID',
            'to_session': 'dev-alerts',
            'project_key': '$PROJECT',
            'subject': '$PROJECT_NAME Build: $COMMIT_TYPE on main',
            'body': '''$PROJECT_NAME main branch updated.

COMMIT: $COMMIT_HASH
TYPE: $COMMIT_TYPE
FILES CHANGED: $FILES_CHANGED
BRANCH: $BRANCH
AUTHOR: $AUTHOR

MESSAGE:
$COMMIT_MSG

🔨 Auto-generated via post-commit hook'''
        }))")

        curl -s -X POST http://172.16.3.30:8001/api/coord/messages \
          -H "Content-Type: application/json" \
          -d "$JSON_PAYLOAD" > /dev/null 2>&1
    fi
fi

exit 0